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Recreational Cyclocross and Gravelbiking This has to be the most physically intense sport ever invented. It's high speed bicycle racing on a short off road course or riding the off pavement rides on gravel like :The Dirty Kanza". We also have a dedicated Racing forum for the Cyclocross Hard Core Racers.

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Old 10-20-04, 10:53 AM   #1
Gravityhatesme
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Ahh!My chain!

I am racing cyclocross with my old mountain bike,I use a single chainring,with a ring on the outside ground into a chainguard, and a third eye antiderailer on the inside, and the chain still falls off!It falls to the inside and gets sucked under the third eye.How do I make my chain fallproof?I have a 122mm BB and the chainring barely clears the chainstays, so I dont think I can use another bash guard on the inside,but mayby.Suggestions?

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Old 10-20-04, 11:26 AM   #2
jfmckenna
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yea I've heard that about third eyes. Currently on my single ring set up I just lowered the derailleur down right over the chain ring and it works flawlessly. If I can scrape up some cash I am going to get the single ring kit they sell on cyclocrossworld.com which is like you described essentially two rings on either side. But you would definattly need the BB clearence for that. And really the derailleur trick works so well there is almost no reason I can think of changing it up except for looks?
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Old 10-20-04, 11:52 AM   #3
jeff williams
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http://www.universalcycles.com/shopp...hp?category=56

I built a simple lower unit mounted on the chainstay, am to try upper\ lower.
It works for my 3 largest cogs when jumping, It helps for rough terrain xc on all cogs.

I run a 38t front and also have little room, how about a longer axle?, but it has to run a nice chainline.

What rear? What size chainring?
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Old 11-28-04, 04:41 PM   #4
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well its not a problem anymore, i got a brand new 01 redline conqeust pro...and the chain stays on just fine.
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